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Title: $Research on Expert System Based on Ontology
Abstract: Aiming at the problem of current expert system about imprecise semantic representation of domain knowledge and low reasoning efficiency,an Ontology-based expert system framework is proposed.In accordance with rule structure,rule pattern Ontology and action Ontology are created.User reasoning conditions are transformed into sub-pattern Ontology,and then a reasoning algorithm of expert system based on similarity calculation based on name and instance as well as Clips reasoning mechanism is designed.An application example from high performance machining is given.Experimental results show that the system can obviously improve reasoning efficiency and semantic expression of reasoning conclusions.